Improvement in spring bed-bottoms



v 0. BABE. Spring Bed-Bottom.

NQ. 210,508. Patented Dec. 3,1878.

N. PETERS, PKOTO-LITMOGRAPDER, WASHINGTON, D, C.

UNITED STAT S PATENT OFFICE.

CHARLES EADE, OF- HONESDALE, PENNSYLVANIA, ASSIGNOR T0 HIMSELF AND H. J.TARBLE, OF SAME PLACE.

IMPROVEMENT IN SPRING BED-BOTTOMS.

Specification forming part of Letters Patent No. 210,508, dated December3, 1878 application filed 7 September 19, 1878.

To all whom it may concern:

Be it' known that I, CHARLES EADE, of l-Ionesdale, in the county of \V.yne and State of Pennsylvania, have invented new and useful Improvementsin Spring Bed-Bottoms; and I do hereby declare that the following is afull and exact description of the same, reference being had to theaccompanying drawings, and to the letters of reference marked thereon.

The object I have in view is to produce a spring bed-bottom which willretain its curved form and not become depressed at its center by use;will yield easily but gradually under pressure, without any sudden checkor stop to the movement; can be readily and conveniently taken apart,either for cleaning or moving, and packed closely for transportation,and at the same time will be light and strong, and cheap to manufacture;and my invention therein consists in the combination of longitudinal andtransverse trussed slats, to give a curved or raised form to the centerof the bedbottom, and to retain it in that shape; second, in thepeculiar manner of trussing the slats, and the construction of theplates for securing the trussin g-wire to the under side of the slats;third, in the peculiar means for removably securing the slats; and,further, in combination of the principal parts of my bed-bottom, asfully hereinafter explained. v

In the drawings, Figure l is a perspective view of the bed-bottom; Fig.2, a central longitudinal section of the same; Figs. 3 and 4, views ofthe upper faces of the plates for holding the trussing-wire to theslats; and Fig. 5, a side elevation of a modified form of my bed,Without supporting-springs at the head and foot.

Like letters denote corresponding parts.

At the head and foot of the bed-bottom are rigid end, bars orcross-pieces A A. The head cross-piece A has slots (1, which receive theends of the longitudinal slats B, and a strip, a, is secured to thecross-piece, covering all these slots except those, if any, which aremade for the two outside slats, retaining the ends of the slats in theslots, but allowing them to be moved cndwise.

The cross-piece A, at the foot, has similar slots; but thecovering-strip I), instead of being fastened to the cross-piece, likethe strip a, is pivoted thereto at one end, and secured at the other bya spring-wire clamp, b, and removable pin. The slots in the footcrosspiece A are narrower than those in the head cross-piece A and theslats are slotted on one side near their ends, to fit these narrowerslots.

'By these means the slats are removably secured to the cross-pieces, sothat they can be quickly taken out for cleaning or moving, and easilyreplaced. The bed can also be made of shorter length by moving the headcross-piece toward the other, and cut-ting oft the ends of the slatstill the desired length is obtained.

The two outside slats, C, are spring-trussed, and so are the cross-slatsD. The trussed cross-slats are preferably two in number, and are placedat equal distances on opposite sides of the longitudinal center of thebed-bottom, or nearer the head, if desired, and are secured at theirends to the longitudinal trussed slats by wire clamps 0. (Shown in apreviously-patented bed-bottom of my invention Patent cap, 01, recessedto receive the large ends ofdouble-coiled spiral springs E, the coils ofwhich are close wound at the small ends, and connected together andsecured to the caps by buttons, as shown in Patent No. 197,621.

Two small wood blocks, 0, are placed in the ends of the coils to eachspring, and through holes in these blocks is passed a wire, F, whichruns parallel to the sides of the slat, and is se cured to the bottom ofthe slat near its ends by metal plates f g.

The plate f, Fig. 3, is made of a general cir cular form, and has acentral hole, through which a screw or rivet is passed for securing theplate to the slat, and a flange, f, around its lower edge, above which,and between the same and the slat, the doubled portion of the wire isplaced.

The plate g, Fig. 4, is secured by a central hole near the other end ofthe slat, has one side rounded, and has a flange, g, over which the wireis passed, and grooves 9 into which the ends of the wire are bent.

Both plates f and 9, only 00min gin contact with the wire at one end andpartly 011 their sides, can have the other end formed square or round.

The wire F is stretched and the slat given an arched form beforesecuring the plate 9 in position, which, when fastened to the slat,firmly holds the wire.

The head and foot cross-pieces A A are support ed by intervening springs upon cross-pieces below, which rest on the side rails of thebedstead, and this is the preferred form for the heavier and moreexpensive bed-bottoms but for cheap and light bed-bottoms I use no otherspring than that given by the slats, and the cross-pieces A A, which aremade somewhat stronger than in the other bed-bottom, rest directly uponthe side rails, Fi 5; but otherwise this bed-bottom will be providedwith all the novel features described.

In the bed-bottom shown in Fig. 5, only one trussed cross-slat is used,for lightness and cheapness; but the number can be changed, as may befound necessary in the manufacture of the different grades ofbed-bottoms, without departing from the spirit of 1n yinvention.

\Vhat I claim as my invention is 1. In a spring bed-bottom, thecombination, with the slats B and end bars, A A, of the 1011- gitudinaland transverse slats G D, held in a curved form by spring-wiresstretched along their under sides, substantially as and for the purposeset forth.

2. In a bed-bottom, the combination, with a slat and a wire for holdingsuch slat in a curved form, of the metal plates f g, secured to oppositeends of such slat, the first plate being provided with a flange overwhich the wire is bent, and the second plate with a flange and withlocking-grooves to secure the ends of the wire, substantially asdescribed and shown.

3. In a bed-bottom, the notched slats B, setting into notches in one ofthe cross-pieces, and reinovably held by a pivoted strip, 1),substantially as described and shown.

4. In a bed-bottom, the combination of the notched cross-pieces A A,having fastened and pivoted strips a b, with the slats B,

notched on their sides near one end, substantially as described andshown.

5. In a bed-bottom, the combination of. the cross-pieces A A,removably-secured slats B, and longitudinal and transverse spring-trussed slats (J D, constructed and arranged substantially asdescribed and shown.

This specification signed and witnessed this 25th day of July, 1878.

CHARLES EADE.

Witnesses AARON DEWIN, JOHN MoIN'rosn.

